Medellín is a latín city located in Colombia, this is a visualization exercise that i designed of the future growth of this city that is confined in a valley surrounded by mountains and the overpopulation forces it to grow upwards. The spacial structure made by tetrahedrons is the one that offers the best use of space to sustain the growth of very high buildings and at the same time works as transport routes in three dimensions . This is a series of five illustrations that go from general to specific passing by different realms of environments.